Door opening and closing mechanism



Dec, 4, 1928. 1,694,134

J. `MMULLEN DOOR -OPENING `AND CLOSING MECHANISII med July 2. 1925 esmas-sneer 1 i IO W f,

Dec.'4, 1928. 1,694,134

J. McMuLLl-:N

DOOR OPENINGAND CLOSING MEGHANISM Patented Dec. 4, 1928. y Y

noony OPENING AND CLOSING MEeHANIsM 1 Application ledvJuly 2, 1925. Serial No. 41,230.

1,694,134. UNITED STATES PATENT OFFICE;

JOHN MCMULLEN, or Bti-Erario, lNEW YORK. j

This' invention relates to a 'door opening and closing mechanism. 1.

`It is among the objects of this invention to provide a simple mechanism associated with a car door for openingand closing the same and which serves to lock the door in any desired position.

The invention comprises the novel structure and combinations hereinafter' described lo and more particularly pointed I.out and `defined in the appended claims.

VIn the accompanying drawings, which illustrate a referred embodiment of this in- Y vention an in which-similar reference numerals refer to similar featuresfin theV different views: f

Figure 1 is a fragmentary side elevational view of a box car to 'which my invention is applied, Figure 2 is an enlarged sectional view upon the line II-II of Figure 1, and

Figure 3 is an enlarged sectional view taken upon the line III-III of'Figure 1 with the lever in operating position. In referring to the drawings, there is shown the side wall of a boxzcar having a door 1 suspended from the usual rail 2 b means of the usual roller hangers 3.

Upon the rear edgev of the door, there is a pivot stud 4. A door opening and closing lever 5 is slidingly pivoted intermediate its ends upon said stud by means of a slot 6 through which the shank'of the stud ext-ends. The stud has a head overlapping the slot for retaining the lever against removal. One end of the lever 'is provided with a handle portion 5, while the other end is restricted for engaging apertures 7 in the web of a channel member 8, attached to the side of the.

car. `This channel member may be termed a rack bar. f

The lever 5 is provided with a laterally eX- tending locking prong 9 adapted for engaging in a suitable aperture in the bottom lever is adapted to be swung to a position above the stud 4, as illustrated in F igure 2, and in order to retain the lever in such posi-y tion, it is provided with a stud 10 which is designed to engage in a recess 11 formed in the upper edge of a metal keeper 12. This metal keeper is formed upon an angle plate 13 attached to the rear portion of the door, one flange engaging the front face of the door and flange of the channel 8 when the door is ink closed position, as shown in Figure 2. Thethe other ange engaging the rear edge of the 1 door,the latter flange having'an upper return-cd bent portion forming the keeper, as

shown` in Figure 1. Y The vlever 1s alsoprovided withan aperturedlug 14v adapted to engage between the i l apertured armsl of a lug 16 attached to the rear edge .of .the door. `The arms 15 lare spaced vfromfthe rear edge of the door so that the lever can be .swung t-hereunder.4 A bolt 17 attached to a chain 18 may be inserted through the apertures in the arms 15an1d lug 14 forlocking the lever in pendant position. Inreferring to Figure'3,it Ywill be noted thatk the lever iscut away at'they rear, as in dicated at 19, for clearance sothat the lever can be Aoscillated transversely.y tothe door when swungsat right anglesthereto.' i

In the use of this.invention,assumingthat the dooris closed, the lever is unlockedand swung at right angles to the-door andthe innerend is engaged with the rack bar. The lever is then oscillated backwards and forwards engaging a diiferent notch each time until the door is partially opened, or until it can be manually operated. The lever may then be swung upwardly under the keeper 12 with the stud 10 engaging the recess 11.

The lever may also be utilized for forcing the door to a tight close by swinging the lever again at right angles to the door, engaging the inner endwith the rock bar'y and forcing the same against the rear of the door. When the door has been shifted as far as one move- 'y ment ofthe lever permits, and the door is not closed, the lever may be removed from the y notch it is in engagement with' and engaged Awith a more advanced notch so that the operavtion, and I therefore do not purpose limitingthe patent granted hereon, otherwise t-han necessitated by the prior art.

I. claim as my invention:

1. The combination with a sliding door, of a rack bar adjacentthe rear of the door opening, a lever slidably pivoted upon the rear edge of said door and swingable at right angles thereto for engaging with said rack bar, said lever having a `locking prong adapted for engagement with said rack bar, and means for locking said lever to said door with said prong in looking engagement with stud, a keeper'having and a `locking aperture in Vone flan said rack 'bar'. Y v

2. "The combination withl a sliding door, of an opening and closing lever slidably piv-` oted to the rear of said door and havniga a recess and secured above the pivoted t oi said lever,` said lever being swingab e under said keeper with the stud enga eable in said recess.

3. The com nnation with a sliding door,V

of an opening and closing lever pivotally lsaid door is inclosed position.

5; The combination with` a sliding dooigoi slidably pivoted an opening and closing lever tothe rear ed e of thedoor,` car with whic erate form ving said door, said rack having a rack nponthe `when said door is saidlever is adapted `to coopp a locking aperture for receiving a portion of said leverwhen `the same is in pendant position for locking said door.'

l `6. The combination with'a Sliding door, of an opening and closing lever slidably pivoted to the" rear edge of the door, means adjacent the rear of the doorior engagementby said lever or operating said door, and a keeper above the pivotpolnt of said lever for maintaining said lever in inverted position. Y

' 7. Thecombination with a slidingjdoor, oi' an opening and closing lever slidably pivoted to the rear edge of the door, means at the rear of said door for engagement by saidlever for operating said door, said means and lever being adapted for interlocking engagement ing said lever in such interlocking Vengagement.

s. The combination with Mining am, f o

an operating lever pivoted to the rear `oi said door, means for engagement bysaid lever 'for moving said door, said leverhavingV a prong for interlocking engagement with said means when said door is in closed position, said lever being swingable out of such interlocking engagement, `and `means for locking the same out of such interlocking engagement. c In testimony whereof I have hereunto subscribed my name. f l

. JOHN MolVlULLllN.'`

closed, and means for lock- 

